package com.my.lists;

/**
 * @author marshal
 * @version 2021-06-03
 */
public class DataTest {
    public static void main(String[] args) {
        var data = new Data();
        System.out.println(data);
        System.out.println(data.getNums());
        data.getNums().add(1);
        System.out.println(data);

    }
}
